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Theory of Machine

Theory of Machine
Relationship between the number of links (L) and number of pairs (P) is

P = 2L + 2
P = 2L - 2
P = 2L - 4
P = 2L + 4

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Theory of Machine
A slider moves at a velocity v on a link revolving at ω rad/s. The coriolis component of acceleration is

ωv
2ωv
2ωv²
ω²v

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Theory of Machine
Rectilinear motion of piston is converted into rotary by

Slider crank
Gudgeon pin
Cross head
Connecting rod

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Theory of Machine
When a slider moves on a fixed link having curved surface, their instantaneous centre lies

At the pin joint
On their point of contact
At the centre of curvature
At the centre of circle

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Theory of Machine
A pantograph is a mechanism with

Turning pairs
Higher pairs
Rolling pairs
Lower pairs

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Theory of Machine
The power of a Porter governor is equal to

[c²/(1 + 2c)] (m + M) g.h
[2c²/(1 + 2c)] (m + M) g.h
[3c²/(1 + 2c)] (m + M) g.h
[4c²/(1 + 2c)] (m + M) g.h

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